Witczak, M. W. (2005). Simple performance tests: Summary of recommended methods and database. Transportation Research Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWitczak, Matthew W. Simple Performance Tests: Summary of Recommended Methods and Database. Washington, D.C: Transportation Research Board, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWitczak, Matthew W. Simple Performance Tests: Summary of Recommended Methods and Database. Transportation Research Board, 2005.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.